Eight Four Suited vs Pocket Tens

At the flop:
Winning 5.16% of the time
Tied 0% of the time
Losing 94.84% of the time

At the Turn:
Winning 10.5% of the time
Tied 0% of the time
Losing 89.5% of the time

At the River:
Winning 17.56% of the time(14.11% with trips or better)
Tied 0.32% of the time
Losing 82.12% of the time(4.51% with trips or better)